Plastics. Phenolic resins. Determination of hexamethylene-tetramine content. Kjeldahl method, perchloric acid method and hydrochloric acid method Ingestion-build-98192 which is very useful for

which is very useful for the users in order to produce and maintain high-quality textile fabrics

This standard is set to become a benchmark standard and a pre-requisite for tendering purposes

BS EN ISO 16484-5 defines data communication services and protocols for computer equipment used for monitoring and control of heating

Any entity involved in testing and inspection of forged and rolled tyres

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Plastics. Phenolic resins. Determination of hexamethylene-tetramine content. Kjeldahl method, perchloric acid method and hydrochloric acid method Ingestion-build-98192 which is very useful for1 Scope This International Standard specifies three methods for the determination of the hexamethylenetetramine (hexa) content of phenolic resins. The three methods are equivalent. The Kjeldahl method described in Clause 3 is not applicable if there are other components containing nitrogen in the phenolic resin. The perchloric acid method and the hydrochloric acid method described in Clause 4 and Clause 5, respectively, are only applicable if there